Arrangement for the telecontrol of guns or the like



Sept. 29, 1925.

P. KAMINSKI ARRANGEMENT FOR THE TELECONTROL or GUNS on THE LIKE Filed M12. 25. 1921 m U M m m m E m m a m. a m s M 1 R PM M 7 m L /0 n H w 4 R w PAUL KAMINSKI, OF BERLIN, GERMANY, ASSIGNO'R TO SIEMENS 8c HALSKE AKTIEN- Patented Sept. 29, 1925.

UNITED STATES 1,555,291 PATENT OFF-ICE.

GESELLSCHAFT, OF SIEMENSSTADT, NEAR BERLIN, GERMANY, CORPORATION OF GERMANY.

ARRANGEMENT FOR THE TELECONTROL OF GUNS OR, THE LIKE.

Application filed August 25, 1921. Serial no. 495,289.

(GRANTED UNDER THE PROVISIONS OF THE ACT OF MARCH 3, 1921, 41 L, 1318.)

To all whom it may concern: Be it known that I, PAUL KAnEInsKI, a citizen of the German Empire, reslding at Berlin, Pankow, Germany, have invented certam new and useful Improvements in Aring is a specification.

This invention refers to an electric signalling arrangement with coarse and fine adjustment for the telecontrol of objects to be trained together on one point, such as guns, search lights, and similar objects.

Sometimes, the training of guns must be accurate to a smallfraction of a degree. In this case it becomes necessary to transmit by means of the signalling devices a great number of positions.

If for instance the training of the guns in all lateral positions is to be accurate to 1/40th partof one degree, it is necessary to transmit by means of thein-dividual signal transmitters 360 40:14,400 positions. This is only possible, if the coarse adjustment element of the transmitter is, permitted to perform a plurality of revolutions. If this is done, it will be found necessary, even with 'two revolutions of the coarse transmitter within the range of 360 degr. to indicate specifically the sector of the range, (i; e. on a. vessel, the side) in which the target to be aimed at is located. Acoordingto this invention special signals are provided for this purpose which, during the passage of the target from the one sector of the coarse transmitter into the other come into action, (e. g. on vessels. from the starboardthro-u'gh the imaginary central axis to port). Preferably the arrangement should be such that for the unmistakable indication of the sector range of the coarse transmitter in which the target is to be found (on vessels for instance on the starboard side between 0-180 degr. or on the port side between 180360 degr.) colored lamps or annunciators are provided which are switched into circuit by means of'a contact device fittedto the transmitter. Aboard ship the lamps or anmmciators respectively are suitably colored red and green to eorrespondinglv indicate the port or starboard side. In this case either the red or green lamp will be flashed, depending upon the side on which the tar et is located. The transmitter contact or switching-in the signals is preferably arranged such that during the passage of the target from one side to the other, both lights are flashed together for a short time thus indicating that the target passes from the one to the other side.

In the diagrammatic drawings Fig. 1. shows the divisions of the sector ranges of the coarse transmitter while Fig. 2 represents the arrangement for indicating the side on which the target is to be found.

In Fig. 1, S represents a ship with the keel line A B and the beam line C D. T represents the sightingdevice whose movements are to be transmitted to the guns I, II, I 11, IV due consideration being paid to the concentration correction for instance in the manner set forth in the U. S. Patent No. 1,532,754 granted tome. Z and Z represent arbitrary localities of targets, however, the angle B T Z may be equal to the angle B T Z If the coarse transmitter is to make a full revolution on its path from B over C to A, and a second full revolution on its path from B over D to A, the receiver apparatus at the gun would show the same position for a target in the point Z as for a second target in the point Z In order. to avoid mistakes,

-ment of this telescopic sight is to be transmitted to the electric transmitter apparatus. The telescopic sight 1 isplaced on a hollow pivot-2 which may be turned by the hand crank 3 by means of the worm '4 and the worm gear 5. The electric coarse trans mitter G is likewise set in motion through the bevel 6 fixed to the pivot and a further bevel 7, the movement of the transmitter G upon the electric coarse receivers on the guns being efiected in a manner well known in the art, as shown for instance in the Letters Patent No. 1,123,067 dated December 29th, 1914, granted to myself and H. Barkhausen. The fine transmitter 6 receives the bearing angle through gearing 25, 26, 27 and bevel gear 12 fixed to the shaft of hand wheel 3. Two insulated half-rings 13 and 14, are mounted upon the pivot 2 which serve as slip rings for the brush 15. The brush 15 is connected through the conductor 16 to one pole of any available source of current for instance battery H. From the slip contact 14 a conductor 17 leads to a green pilot lamp Gr on the transmitter to similar green lamps E on all receivers; and from the slip contact 13 a conductor 18 leads over a red pilot lamp G, on the transmitter to red lamps E on the receivers and thence to the other pole of the source of supply. As an example one pair of distant receivers is shown on the gun base indicated by dotted lines. For the purpose of the present invention it is assumed that the lamps at the transmitter and receivers are conveniently located adjacent to these instruments so that they may be observed by the operator at the respective station. It appears immaterial in what manner the transmitter and receivers are graduated, since this has no bearing on and is not necessary for the understanding of the present invention, so long as it is understood that the transmitter and receivers make more than one revolution, and that each revolution corresponds to one section of the slip ring 13, 14 as shown.

It will be seen that according to the position of the telescope 1 the circuit is closed either for the green or for the red lamps and thereby the sector of the coarse tr'ans mitter is defined in an unmistakable manner. The gap between the two half rings 13 and 14 is made so small that during the passage from the one'to the other the brush 15 temporarily closes both circuits, thus indicating its passage into the new sector.

What I claim is:

1. An electrical signalling arrangement for the telecontrol of objects comprising the combination of a sighting device at a control station, electrical transmitters for coarse and fine adjustment adapted to transmit the position of said device, mechanical means for rotating said sighting device within the reach of 360 and operating simultaneously said transmitters, and transmission gear inserted between said mechanical means and said coarse transmitter for causing the latter to make a plurality of revolutions when the sighting device once passes its entire reach, a plurality of insulated metallic pieces on said sighting device acting as slip contacts, a contact brush sliding on said pieces for closing different circuits with said slip contacts, corresponding electrical receivers at the objects to be controlled, actuated by said transmitters and differentiated optical means arranged in the circuits of said slip contacts for indicating the number of revolutions of said coarse transmitter.

2. An electrical signalling arrangement for the telecontrol of objects comprising the combination of a sighting device at a control station, electrical transmitters for coarse and fine adjustment adapted to transmit the position of said device, mechanical means for rotating said sighting device within the reach of 360 and operating simultaneously said transmitters, and transmission gear inserted between said mechanical means and said coarse transmitter for causing the latter to make two revolutions when the sighting device passes its entire reach, two half rings disposed on said sighting device to form a complete ring and adapted to act as slip contacts, insulations between the ends of said two half rings, a contact brush slightly wider eripherally than each of said insulations and sliding on said rings for closing two difi'erent circuits with said slip contacts, corresponding electrical receivers disposed at the objects to be controlled and actuated by said transmitters, two diflerent optical means placed near said transmitters, and two corresponding optical means placed near said receivers, both of the optical sys tems arranged in the circuits of said slip contacts and adapted to indicate the number of revolutions of said coarse transmitten In testimony whereof I aflix my signature.

PAUL KAMINSKI. 

